Im calling this code from the MasterViewController in a UISplitVC for an iPad app:
-(void)viewWillAppear:(BOOL)animated{
//PRESENT MODALVC
ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
[self setModalPresentationStyle:UIModalPresentationFullScreen];
[self presentModalViewController:modalVC animated:YES];
}
but it doesn't work. No ModalVC appears.
Try this code:
ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
[modalVC setModalPresentationStyle:UIModalPresentationFullScreen]; //You set the presentation style of the controller that would be presented, not the presenting controller
//This check is needed, because presentModalViewController:animated is depreciated in iOS5.0 and presentViewController:animated:completion must be used instead. The same is valid for dismissModalViewControllerAnimated and dismissViewControllerAnimated:completion
if([self respondsToSelector:#selector(presentViewController:animated:completion:)])
[self presentViewController:modalVC animated:YES completion:nil];
else
[self presentModalViewController:modalVC animated:YES];
If you are targeting iOS5.0+ only this check is not needed and you should use only presentViewController:animated:completion and dismissViewControllerAnimated:completion
Related
On my project we have three windows A, B and C. From A I would like to push view B, and from B I would like to present view C.
My code:
ViewController A:
ViewControllerB *vcB = [[viewControllerB alloc]
initWithNibName:#"ViewControllerB" bundle:nil];
[[self navigationController] pushViewController:vcB animated:YES];
View Controller B:
ViewControllerC *vcC = [[ViewControllerC alloc]
initWithNibName:#"ViewControllerC" bundle:nil];
[self presentViewController:vcC animated: true completion: nil];
Everything is ok until now, but when I dismiss the last view controller with:
[[self presentingViewController] dismissViewControllerAnimated:NO completion:nil];
The app goes back to first view controller (vcA) instead the second one (vcB)
What am I doing wrong?
Thank you, guys.
You must be doing something else that you're not telling us about...
This works as expected:
In MyFirstViewController.m
- (IBAction)pushTapped:(id)sender {
MyPushedViewController *vc = [[MyPushedViewController alloc] initWithNibName:#"MyPushedViewController" bundle:nil];
[self.navigationController pushViewController:vc animated:YES];
}
In MyPushedViewController.m
- (IBAction)presentTapped:(id)sender {
MyPresentedViewController *vc = [[MyPresentedViewController alloc] initWithNibName:#"MyPresentedViewController" bundle:nil];
[self presentViewController:vc animated:YES completion:nil];
}
In MyPresentedViewController.m
- (IBAction)dismissTapped:(id)sender {
[self dismissViewControllerAnimated:NO completion:nil];
}
Tapping the "dismiss" button in MyPresentedViewController dismisses the presented view controller (your vcC), leaving me at MyPushedViewController (your vcB) ... NOT at MyFirstViewController (your vcA).
try this to dismiss vc
[self dismissViewControllerAnimated:NO completion:nil]
and use this to pop
[self.navigationController popToViewController:controller animated:YES];
[self presentingViewController] = Bvc , so here you actually dismissing B not C
[Bvc dismissViewControllerAnimated:NO completion:nil];
but self = Cvc so here you dismissing C only
[self dismissViewControllerAnimated:NO completion:nil];
I have xib of passcode and after I tap on login button there will be web service that will call and after success response, I have to present xib of passcode.
When I complete that portion I have to push to another view controller from presented xib.
Here is my code:
[self dismissViewControllerAnimated:NO completion:^{
if ([_delegate respondsToSelector:#selector(unlockWasSuccessfulLockScreenViewController:pincode:)]) {
[_delegate unlockWasSuccessfulLockScreenViewController:self pincode:pincode];
PassCodeVC *sgn = [self.storyboard instantiateViewControllerWithIdentifier:#"PassCodeVC"];
UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:sgn];
[nav pushViewController:sgn animated:YES];
}
}];
and I have presented xib like this:
JKLLockScreenViewController * viewController = [[JKLLockScreenViewController alloc] initWithNibName:NSStringFromClass([JKLLockScreenViewController class]) bundle:nil];
UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:viewController];
[viewController setLockScreenMode:LockScreenModeNew]; // enum { LockScreenModeNormal, LockScreenModeNew, LockScreenModeChange }
[viewController setDelegate:self];
[viewController setDataSource:self];
[viewController setTintColor:[UIColor colorWithRed:53.0 / 255.0 green:115.0 / 255.0 blue:157.0 /255.0 alpha:1]];
[self presentViewController:nav animated:YES completion:nil];
If you wish to use current navigation then Just simple pass new controller using current navigation controller.
PassCodeVC *sgn = [self.storyboard instantiateViewControllerWithIdentifier:#"PassCodeVC"];
[self.navigationController pushViewController:childViewController animated:YES];
You may need to set the Storyboard ID of the View Controller you are trying to load. This is located in the inspector, just below where you assign a custom class to your view controller.see this image
In a view that was created modally, pressing a button causes the modal view to be dismissed and another modal view to load.
- (void)loadLanguageSelectionView {
[self dismissViewControllerAnimated:YES completion:nil];
UIViewController *languageSelectionController = [[LanguageSelectionViewController alloc] initWithNibName:nil bundle:nil];
[languageSelectionController setModalPresentationStyle:UIModalPresentationCustom];
[languageSelectionController setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[self presentViewController:languageSelectionController animated:YES completion:nil];
}
The following error is thrown when this code block executes:
DenkoStation[4259:73173] Warning: Attempt to present <LanguageSelectionViewController: 0x7b185430> on <ViewController: 0x79f52e50> whose view is not in the window hierarchy!
What surprises me is the fact that the code was running happily before I made some changes to my code as outlined here.
Where's the mistake?
Because you are trying to present a viewController on top of a viewController which is already dismissed and no longer in window hierarchy.
What you can try is, you can take the ParentViewController reference from current viewController and then you can present new viewController on ParentViewController Like This :
- (void)loadLanguageSelectionView {
UIViewController *parentController = self.presentingViewController;
[self dismissViewControllerAnimated:YES completion:^{
UIViewController *languageSelectionController = [[LanguageSelectionViewController alloc] initWithNibName:nil bundle:nil];
[languageSelectionController setModalPresentationStyle:UIModalPresentationCustom];
[languageSelectionController setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[parentController presentViewController:languageSelectionController animated:YES completion:nil];
}];
}
Currently, when a button is tapped, a UIModalPresentationSheet comes up. I'd like to add a navigation bar at the top of this when it slides up. I've tried a lot of things but nothing seems to work. Here's what i'm currently trying and it returns this error.
AthleteAdd *addAthlete = [self.storyboard instantiateViewControllerWithIdentifier:#"addAthlete"];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addAthlete];
//[self.navigationController pushViewController:addAthlete animated:YES];
addAthlete.delegate = self;
addAthlete.modalPresentationStyle = UIModalPresentationFormSheet;
// UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:addAthlete];
[self presentViewController:navigationController animated:YES completion:nil];
But it pushes it up modally, and without the modalpresentationsheet form. How can I make it so the navigation controller is sized correctly?
Try to change your code like this :
AthleteAdd *addAthlete = [self.storyboard instantiateViewControllerWithIdentifier:#"addAthlete"];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addAthlete];
addAthlete.delegate = self;
navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:navigationController animated:YES completion:nil];
Because here, you try to present addAthlete from itself. So you get this error.
You should present navigationController in which you encased your addAthlete.
[self presentViewController:navigationController animated:YES completion:nil];
You are presenting from current viewcontroller itself.
Try something like,
[self dismissViewControllerAnimated:YES completion:^{
[self.parentViewController presentViewController: navigationController animated:YES completion:nil];
}];
I'm trying to implement a UIModalTransitionStylePartialCurl on a viewController to present a partial view of ViewController2 (I am using xCode 4.6 with storyBoards for a universal app). The following code does animate the UIModalTransitionStylePartialCurl but shows only a black window underneath. So, it works (no crash) but it won't present/show the second view ??
ViewController2 *v2 = [[ViewController2 alloc]init];
v2.modalTransitionStyle = UIModalTransitionStylePartialCurl;
[self presentViewController:v2 animated:YES completion:NULL];
You haven't initialized v2 . you should use this :
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Your_storyboard_name" bundle:nil];
ViewController2* v2 = [storyboard instantiateViewControllerWithIdentifier:#"Your_view_controller_identifier_from_storyboard"];
v2.modalTransitionStyle = UIModalTransitionStylePartialCurl;
[self presentViewController:v2 animated:YES completion:NULL];
Do any additional checks to see if it's iPad or iPhone and fill the information as is required.